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Browse the glossary using this index

Special | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | ALL

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A

angular momentum

the product of the moment of inertia and angular velocity

C

change in momentum

the difference between the final and initial values of momentum; the mass times the change in velocity

E

elastic collision

collision in which objects separate after impact and kinetic energy is conserved

I

impulse

average net external force multiplied by the time the force acts; equal to the change in momentum

impulse–momentum theorem

the impulse, or change in momentum, is the product of the net external force and the time over which the force acts

inelastic collision

collision in which kinetic energy is not conserved

isolated system

system in which the net external force is zero

L

law of conservation of momentum

when the net external force is zero, the total momentum of the system is conserved or constant

linear momentum

the product of a system's mass and velocity

P

perfectly inelastic collision

collision in which objects stick together after impact and kinetic energy is not conserved

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